As winter is approaching, make sure your house is well insulated.
All points of contact must be well insulated with glass, porcelain, or hard rubber.
The part of the wire where it passed into the tubes was well insulated.
In the later vessels of this type the wireless installation is housed in a well insulated compartment.
The mice were curled up in the center of masses of dead leaves, and thus, were well insulated against the cold.
All the piping, including that under the floor, and the reheater D, are covered with hair-felt and well insulated.
Some manufacturers use very small frames which are placed into compartments, well insulated to retain heat.
And flying above it, as well insulated as he was, Dane knew that he could be dangerously exposed.
The nodes may also be investigated by means of an ordinary Cardew voltmeter which should be well insulated.
The electric oven which is well insulated answers the purpose of a fireless cooker when the current is disconnected.
1530s, "make into an island," from Latin insulatus, from insula (see insular). Sense of "cause a person or thing to be detached from surroundings" is from 1785. Electrical/chemical sense of "block from electricity or heat" is from 1742. Related: Insulated; insulating.